Removing the radial shaft seal (rotor shaft)

WARNING: High-voltage system.
The high-voltage system operates on the basis of hazardous, electrical voltage and high currents. Mortal hazard through electric shock!

All work on the high-voltage system may only be carried out by specially trained and technically experienced personnel.
For additional information see:
61 00... SAFETY INSTRUCTIONS ON HANDLING HYBRID CARS .
For additional information see:
61 25... NOTES ON REPAIR OF HIGH-VOLTAGE BATTERY UNIT .

WARNING: Vehicle may slip off the vehicle hoist if the vehicle hoist is handled incorrectly.
Danger! Immobilization period-threatening injuries!

Observe safety instructions on raising the vehicle using a vehicle hoist.
For additional information see: 00... RAISING THE VEHICLE USING A VEHICLE LIFT .

WARNING: Car may slip off the vehicle hoist where components are supported.
Danger! Immobilization period-threatening injuries!

Secure the vehicle hoist against lowering and lifting.
Make sure that the vehicle does not lift off the mounting plates on the vehicle lift.

WARNING: Car may slip off the vehicle hoist if the weight is distributed unevenly.
Danger! Immobilization period-threatening injuries!

Ensure there is a specific weight compensation on the car.

WARNING: Hot fluids.
Risk of scalding!

Conduct all work in the vehicle wearing appropriate personal protective equipment only.

CAUTION: Materials harmful to health.
Contact with fluids harmful to health!

Note and follow safety instructions on containers.
Conduct all work in appropriate personal protective equipment only.

NOTE: RISK OF DAMAGE
Damage to the electric machine transmission.
Failure to comply with the oil specifications can result in serious damage to the electric machine transmission.

After completion of repair work, check the transmission oil level in the electric machine transmission.
Only use approved transmission oil for the electric machine transmission.

NOTE: TECHNICAL INFORMATION
After disconnecting, seal the high-voltage connector with the cover caps from the set of special tools 5A4A589.

NOTE: TECHNICAL INFORMATION
Perform wheel alignment after installation.

NOTE: TECHNICAL INFORMATION
The radial shaft seal in the electric machine transmission must be replaced each time the output shaft is removed!

NOTE: TECHNICAL INFORMATION
During work on the rear brake, it must be ensured that the button for the electromechanical parking brake cannot be pressed.

NOTE: TECHNICAL INFORMATION
With the ignition off and the high-voltage safety plug disconnected, the Check Control message "High voltage system faulty" is displayed by default.
The message "High-voltage system switched off" (absence of voltage) is only displayed when the ignition is switched on.

NOTE: TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.

NOTE: TECHNICAL INFORMATION
Follow notes for repair work on the cooling system.
For additional information see:
00... RAISING THE VEHICLE USING A VEHICLE LIFT .

Preliminary work

Refer to REMOVING THE FLAP IN THE LUGGAGE COMPARTMENT WHEEL ARCH TRIM PANEL ON THE RIGHT .
Refer to REMOVING THE COVER OF THE REAR RIGHT ENGINE COMPARTMENT .
Refer to REMOVING THE REAR LEFT AND RIGHT WHEELS .
Refer to RELEASING THE LEFT AND RIGHT OUTPUT SHAFT FROM THE WHEEL BEARING .
Refer to REMOVING THE BOTTOM FRONT LEFT AND RIGHT COVER .
Refer to REMOVING THE WIRING HARNESS MOUNTING .
Refer to REMOVING THE TOP SOUND INSULATION .
Refer to REMOVING RIGHT POTENTIAL EQUALIZATION LINE .
Refer to PREPARING THE SPECIAL TOOL .
Refer to REMOVING REAR SOUND INSULATION .
Refer to ATTACHING HIGHLY INTEGRATED ELECTRIFIED DRIVE TOPOLOGY TO THE ASSEMBLY JIG .
Refer to REMOVING THE LID FROM THE BRUSH MODULE .
Refer to REMOVING THE BRUSH MODULE .

Position the sleeve 5 A3B 930 on the rotor shaft all the way to the stop.

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Position the center punch (3) at an angle relative to the sleeve 5 A3B 930 in the groove (2) of the dust guard ring (1) as shown.
With the center punch (3) in the illustrated position, make a punch mark in the groove (2) of the dust guard ring (3).

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Position the drill with drill bit (2) at an angle relative to the sleeve 5 A3B 930 in the punch mark of the dust guard ring (1) as shown.
Drill (2): Diameter 3 mm
With the drill bit (2) in the illustrated position, drill a hole through the dust guard ring (1).
After drilling through, drill (2) hits the radial shaft seal to be replaced. There is no risk of damage.

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Remove sleeve 5 A3B 930 from the rotor shaft.
Screw the puller 0 491 455 (23 0 491) into the bore of the dust guard ring (1) at an angle as shown.

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Remove dust guard ring (1) using puller 0 491 455 (23 0 491).

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Position mandrel (2) at an angle to the rotor shaft on radial shaft seal (1) as shown.

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Twist radial shaft seal (1) by striking mandrel (2) as shown.

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Position wedge 2 298 505 and screwdriver (2) as shown.
Wedge 2 298 505 serves to protect the housing from damage.
Using screwdriver (2), radial shaft seal (1).

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